Had one of hese once and it bloomed and died about 12 years ago. Got another as a small bbdiv from the local conservatory where I repotted, about 6 or so years ago. They have a problem with worngly labelled plants; quite a number of nice crosses there have bloomed out all "Land of Enchantment'. So I was tentative but hopeful about this one as the original really took my breath away. Well, it has finally bloomed, just one 7+inch (17.7+ cm) flower. And I am so glad it has blooomed out true. The pic doesn't quite do it justice; it is an all-green flower with a sulfur yellow throat; the lip shows a white ruffled edge that in reality is a very very pale creamy green.
IMHO, it is the finest green I've ever seen, surpassing even Ports of Paradise.